Write the equation of a line
passing through (4, 2) and (4,-3) please help

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

With alll of except for the 2 that i did already

Percent increase and decrease. original number: 45 new number: 18